pykig.py: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/pykig.py - from package: kig

You may install the required package with command apt-get install {package}

Error in other languages:
pykig.py: bevel nie gevind nie
pykig.py: comandă negăsită
pykig.py: comando não encontrado
pykig.py: commande introuvable
pykig.py: command not found
pykig.py: käsku ei ole
pykig.py: không tìm thấy lệnh
pykig.py: komanda nerasta
pykig.py: Kommando nicht gefunden.
pykig.py: kommandot finns inte
pykig.py: komut yok
pykig.py: nie znaleziono polecenia
pykig.py: níor aimsíodh an t-ordú
pykig.py: no se encontró la orden
pykig.py: no s'ha trobat l'ordre
pykig.py: opdracht niet gevonden
pykig.py: parancs nem található
pykig.py: perintah tidak ditemukan
pykig.py: príkaz nenájdený
pykig.py: příkaz nenalezen
pykig.py: команда не найдена
pykig.py: командата не е открита
pykig.py: 命令找不到
pykig.py: コマンドが見つかりません